The alternative hypothesis, denoted by H1,represents the opposite of the null hypothesisand is believed to be true if the null hypothesisis found to be false.Select one:TrueO False

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Answered: The alternative hypothesis, denoted by…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A presidential candidate claims that the proportion of college students who are registered to vote in the upcoming election is at least 64%. Suppose that we want to sample a number of college students and carry out a hypothesis test to see if this daim may be refuted. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H: 0 H;: 0 A OSO D=0
You may need to use the appropriate technology to answer this question. Suppose a certain state university's college of business obtained the following results on the salaries of a recent graduating class: Finance Majors Business Analytics Majors n1 = 140 n2 = 30 x1 = $48,337 x2 = $55,217 s1 = $19,000 s2 = $10,000 (a) Formulate hypotheses so that, if the null hypothesis is rejected, we can conclude that salaries for Finance majors are significantly lower than the salaries of Business Analytics majors. Use ? = 0.05. (Let ?1 = the population mean salary for Finance majors, and let ?2 = the population mean salary for Business Analytics majors. Enter != for ≠ as needed.) H0: Ha: (b) What is the value of the test statistic? (Use ?1 − ?2. Round your answer to three decimal places.) (c) What is the p-value? (Round your answer to four decimal places.) p-value = (d) What is your conclusion? Do not reject H0. We cannot conclude that…
I. M. Schurr claims that students enjoy online classes more than professors. In order to test his claim, Schurr takes a sample of 60 students and determines 80% of the students enjoy online classes. For a sample of 40 professors, Schurr finds that 55% of the professors enjoy online classes. Do the data support Schurr’s claim that students enjoy online classes more than professors? a. State the null and alternative hypothesis that would be used to test whether students enjoy online classes more than professors.b. What is the appropriate test statistic?c. Determine the critical value(s) for this test using a 1% significance level.d. Calculate the value of the test statistic.e. What is your decision and conclusion?
Every time you conduct a hypothesis test, there are four possible outcomes of your decision to reject or not reject the null hypothesis: (1) You don’t reject the null hypothesis when it is true, (2) you reject the null hypothesis when it is true, (3) you don’t reject the null hypothesis when it is false, and (4) you reject the null hypothesis when it is false. Consider the following analogy: You are a meat inspector for the county health department. For every batch of meat you inspect, you must decide whether to certify that the meat is safe for human consumption. Suppose your null hypothesis is that the meat is unfit for human consumption. As in hypothesis testing, there are four possible outcomes of your decision: (1) You do not certify the meat when the meat is unfit for human consumption, (2) you certify the meat when the meat is unfit for human consumption, (3) you do not certify the meat when the meat is safe, and (4) you certify the meat when the meat is safe. Which of the…
The alternative hypothesis, denoted by H1, represents the opposite of the null hypothesis and is believed to be true if the null hypothesis is found to be false. Select one: O True O False
A decade-old study found that the proportion of high school seniors who felt that "getting rich" was an important personal goal was 69%. Suppose that we have reason to believe that this proportion has changed, and we wish to carry out a hypothesis test to see if our belief can be supported. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. Ho: 0 H1: 0 O=0
(a) Identify the claim and state H0 and Ha. (b) Use technology to find the P-value. (c) Decide whether to reject or fail to reject the null hypothesis and (d) interpret the decision in the context of the original claim.
The solution for H0 or H1 was not given or explained in the expert solution provided.
You watch people exiting Dodgers stadium after a game and you write down the number of males and the number of females that exit the stadium past you during the 20 minutes that you spend watching. You assumed that there would be a perfectly equal number of males and females attending a Dodgers game, but you look at the number of males and females that you actually counted, and you see if you still think that is actually true. What kind of hypothesis test would allow you to do this? a. One-Factor, Independent-Measures ANOVA b. Two-Factor ANOVA c. Correlation/Regression d. Chi-Square Goodness of Fit
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Why is the null hypothesis H0: μ = 0?
Suppose a group of 800800 smokers (who all wanted to give up smoking) were randomly assigned to receive an antidepressant drug or a placebo for six weeks. Of the 500500 patients who received the antidepressant drug, 134134 were not smoking one year later. Of the 300300 patients who received the placebo, 5151 were not smoking one year later. Given the null hypothesis ?0:(?1−?2)=0H0:(p1−p2)=0 and the alternative hypothesis ??:(?1−?2)≠0Ha:(p1−p2)≠0, conduct a test to see if taking an antidepressant drug can help smokers stop smoking. Use ?=0.03α=0.03 (a) The rejection region is |?|>|z|> (b) The test statistic is ?=z=

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The alternative hypothesis, denoted by H1, represents the opposite of the null hypothesis and is believed to be true if the null hypothesis is found to be false.